Saw this at the Hiller Air Museum. Should be enough for an xbee spycam (alla <a href="http://www.youtube.com/watch?v=hqhaMaKGTQ4">http://www.youtube.com/watch?v=hqhaMaKGTQ4</a>). They wanted $12 bucks for one, so I balked. However, I am sure there is a more economic source. Happy hunting<br>